Organic Chemistry - ACS Publications - American Chemical Society

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The Journal of

Organic Chemistry EDITOR-IN-CHIEF CLAYTON H. HEATHCOCK Department of Chemistry University of California Berkeley, California 94720 SENIOR EDITORS Peter Beak University of Illinois, Urbana Robert M. Coates University of Illinois, Urbana C. Dale Poulter University of Utah Henry Rapoport University of California, Berkeley Andrew Streitwieser University of California, Berkeley Steven M. Weinreb The Pennsylvania State University A S S I S T A N T EDITOR Cheri R. Hadley

ADVISORY BOARD Paul A. Aristoff David E. Bergbreiter Barry Carpenter Rick L. Danheiser Roger Freidinger Bruce Ganem Robert H. Grubbs Alfred Hassner Kendall N. Houk David Lynn Frank B. Mallory Albert I. Meyers Marvin J. Miller John J. Partridge Matthew Platz Kenneth L. Rinehart Stuart Schreiber David I. Schuster Ichiro Shinkai Charles Starks W. Clark Still JoAnne Stubbe Craig A. Townsend Edwin Vedejs

Ex-Officio Member William R. Roush Indiana University (Secretary-Treasurer of the Division of Organic Chemistry of the American Chemical Society)

The Journal of Organic Chemistry (ISSN 0022-3263) is published biweekly by the American Chemical Society at 1155 16th Street. N.W., Washington, DC 20036. Secondclass postage paid at Washington, DC, and additional mailing offices. POSTMASTER: Send address changes to The Journal of Organic Chemistry, Member & Subscriber Services, P.O. Box 3337, Columbus, OH 43210. Canadian GST Reg. No. R127571347. American Chemical Society 1155 16th St, N.W. Washington, DC 20036 (202) 872-4600 TDD (202) 872-8733 FAX (202) 872-4615 Journals Department American Chemical Society 2540 Olentangy River Road P.O. Box 3330 Columbus, OH 43210 (614) 447-3600, Ext. 3171 TELEX 6842086; FAX (614) 447-3745 Member & Subscriber Services American Chemical Society P.O. Box 3337 Columbus, OH 43210 (614) 447-3776 (800) 333-9511 PUBLICATIONS DIVISION Robert H. Marks, Director Journals Department: Charles R. Bertsch, Head; Marianne C. Brogan, Associate Head Editorial Office: Mary E. Scanlan, Manager; Kathleen E. Duffy, Joseph E. Yur¬ vati, Journals Editing Managers; Esther J. Ober, Associate Editor; Diane E. Needham, Assistant Editor; Mary B. Harig, Staff Editor Advertising Office: Centcom, Ltd., 500 Post Road East, Westport, CT 06880 © Copyright 1991 by the American Chemical Society. Copyright permission: An individual may make a single reprographic copy of an article in this publication for personal use. Reprographic copying beyond that permitted by Section 107 or 108 of the U.S. Copyright Law is allowed, provided that the appropriate percopy fee is paid through the Copyright Clearance Center, Inc., 27 Congress St., Salem, MA 01970. For reprint permission, please write to the Copyright Administrator, Publications Division, at the ACS Washington address. The paper used in this publication meets the minimum requirements of American National Standard for Information Sciences—Permanence of Paper for Printed Library Materials, ANSI Z39.481984. Editorial Information Instructions for authors and copyright transfer form are printed in the first issue of each volume. Please conform to these instructions when submitting manuscripts. Manuscripts for publication should be submitted to the Editor, Clayton H. Heathcock, at his Berkeley, CA, address. Correspondence regarding accepted papers and proofs should be directed to the Journals Department at the address above. Page charges of $25.00 per page may be paid for papers published in this journal. Payment does not affect acceptance or scheduling of papers. Bulk reprints of individual articles are available. For information write to Distri-

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